The most gigantic Super Hero event in the history of television is on the horizon at the CW. The cast’s of Supergirl, The Flash, Arrow, and Legends of Tomorrow will be teaming up for a 4 night crossover event. Today we have the first promotional photos for this team up and you are not going to be disappointed. Get all the details below and share your thoughts AFTER THE JUMP. The 4 night DC CW crossover event kicks off on Monday, November 28th at 7pm Central with Supergirl!